Carbureter.



No. 728,644. PATENTED MAY 19, 1903. J. T. WOOD.

GARBURETER.

APPLICATION FILED NOV. 3, 1902.

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Q 6 i H o o o c% 9/ o o o o o 0 i KQQQAT No. 728,644. PATENTED MAY 19, 1903.

J. T. WOOD. I

UARBURETER.

APPLICATION FILED NOV. 3, 1902.

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- No. 728,644. PATENTED MAY 19,1903;

' J. T. WOOD.

GARBURETER.

. APPLICATION FILED NOV. 3, 1902. I no MODEL. 4 SHEETS-SHEET s.

' No. 728,644. PATEN'TED MAY 19, 1903.

J. T. WQOD.

GARBURETBR.

APPLICATION FILED NOV. 3, 1902.

I0 nomm. 4 SHEETS-SHEET 4.

UNIT D STATES Patented May 19, 1903.

PATENT OFFICE.

JOHN T. WOOD, OF LITCHFIELD, ILLINOIS, ASSIGNOR OF ONE-HALF TO JACOB OLDENDOBPH, OF WATERLOO, ILLINOIS.

CARBURETER.

SPECIFICATION forming part of Letters Patent N 0. 728,644, dated May 19, 1903.

Application filed November 3,1902- erial No. 129,945. (No model.)

' of Illinois, have invented certain new and useful Improvements in Carburetors, of which the following is a full,clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My object is to construct an improved carbureter; and my invention consists of the novel features herein shown, described, and claimed. 7

Figure 1 is a front elevation of my improved machine, the pipes'being broken away. Fig. 2 is a side elevation as seen looking in the direction indicated by the arrow 2 in Fig. 1. Fig. 3 is a sectional detail, upon an enlarged scale, of the gas-valve and taken on the line 3 3 of Fig. 1. Fig. 4 is a sectional detail of the safety blow-off valve. Fig. 5 is a vertical central section of the airmixing tube. Fig. 6 is a vertical central section of the oil connections. Fig. 7 is a-vertical central section of the starting burner. Fig. 8 is a horizontal sectional detail of the main generator. Fig. 9 is a cross-section on the line 9 9 of Fig. 8.

Referring to the drawings in detail, the supporting-frame is a rectangular box 10, standing on end and having a perforated door 11 to close its front side. The main generator 12 is mounted in the upper part of the box, and said generator consists of a rectangular plate substantially the same size in plan as the box 10, and the generator is constructed as shown in detail in Fig. 8. The nipple 13 extends from one endof the generator through the side wall of the box, and the outer'end has the interior screw-threads 14. A bore or passage is formed back and forth through this plate, beginning at the nipple 13 and terminating at the opposite end of the plate. In forming this passage the first opening 15 is bored from the outer end of the nipple 13. The first cross-bore 16 is made atthe opposite end of the generator from the nipple 13. The second longitudinal bore 17 is made parallel with the bore 15 and from the same end. The second cross-bore 18 is made from the opposite side and opposite end of the generator from the cross-bore 16, and the third lonator 12.

as shown in detail in Fig. 7, and consists of gitudinal bore 19 is made from the opposite end of the generator from the bores 15 and 17. A plug 20 closes the outer end of the bore 16. A similar plug 21 closes the outer end of the bore 17, and a third plug 22 closes the outer end of the bore 18.

The main regulating-valve 23 is connected to the open end of the bore 19 bya nipple 24, screw-seated in a plug 25, which in turn is screwed in the bore. Aframe-casting 26 has a nipple 27, which screws into the nipple 13 of the generator. The upper end of the casting has a bore 28', connecting with the bore 29, drilled from the outer end of the nipple 27. A short conection 30 is screw-seated in the upper end of the bore 28 and into the lower end of the cut-off valve 31, and the airpressure gasolene-supply pipe 32 is connected to the valve 31.

The gravity pressure-pipe 33 leads from the gravity pressure-tank 34 to the cut-off valve 35, and this cut-01f valve is connected by the short connection 36 to the nipple 37, extending from the lower end of the casting 26. A bore 38, extending from the outer end of the nipple into the casting, intersects a vertical bore 39, formed. from the lower end of the casting, the outer end of said bore 39 being closed by the plug 40. A nipple 41 extends from the lower end of the casting and has a bore 42 communicating with the lower end of the bore 39., The generator-pipe 43.

leads through the side wall of the box 10, and the starting-burner 44 is mounted upon said pipe directly under the center of the gener- The starting-burneris constructed a cylindrical body 45, forming the air-mixing tube; a nipple 46, into which the pipe 43 is screw-seated; an arm 47, extending downwardlyfrom the nipple 46 and having a bore 48; a valve-casing 49 at the lower end of the arm 47 and having a discharge-opening'50 for discharging gas into the mixing-chamber 45, and this discharge-opening being controlled by the needle-valve 51; an arm 52, leading from the opposite side of the mixingchamber to the valve-casing and serving as a heat-conductor; a heating-plate 53, extending outwardly from the central part of the mixing-chamber in the form of a flange; the

tube 54,inserted into the upper end of the mixing-chamber and forming an extension of the mixing-chamber, and a return-passage 55, outside of said tube 54, there being openings 56 to discharge gas against the heating-plate 53, and a flame-spreader 57, mounted upon the upper end of the mixing-chamber. The flame-spreader consists of a horizontal cylindrical body cored hollow to forn1- the gaschamber 58, and having its ends closed by the plugs 59 and 60, and having a nipple 61, extending downwardly to receive the upper end of the mixing-chamber. The gas is discharged through the small openings 62 against the generator 12. A drip-cup 63 is formed integral with the stuffing-box 64 of the needlevalve 51. Gasolene is supplied to the starting burner from the gravity pressure-tank 34, and gasolene is supplied to the main generator through the pipe 32 from a tank (not shown) containing air-pressure. The generator packing-rods 65, 66, and 67 have their ends enlarged to form flanges 68, and notches 69 are formed in the flanges, and said rods are inserted into the bores 15, 17, and 19, respectively, leaving thin spaces 70 around the rods to be filled with gasolene or gas. These rods take the place of the ordinary packing and serve to separate the gasolene into a thin sheet, facilitating its rapid generation into gas, and when desired the rods maybe readily removed for cleaning.

The needle-valve casting 23 has a shoulder 71 and flange 72. A cylindrical casing 73 is placed on top of the box 10 with one end projeoting to the right of the box, and the point of the needle-valve casting 23 is inserted upwardly from the wall of the casing, and a rivet 74 connects the casing to the flange 72. An imperforate cap 75 closes the left-hand end of the casing 73, and a removable foraminous cap 76 is inserted into the opposite end of the casing. An opening is formed through the top wall of the casing in line with the needle-valve 23, and a reinforcing-ring 77 is secured to the inner face of the casing around thisopening. Theair-mixingtube78isscrewseated through the casing into the reinforcement 77, and a lock-nut 79 upon the tube engages the outer face of the casing to assistin holding the parts rigidly together. The adjustable regulating-tube 80 is screw-seated in the lower end of the mixing-tube 78 and extends downwardly around the discharge-orifice of the needle-valve 23, said tube 80 being adjustable up anddown by means of inserting a pointed tool in the openings 81 and rotating the tube as desired. The gas-pipe 82 is secured to the upper end of the mixingtube 78 by means of the enlarged union 83. The subburner gas-pipe 84 extends laterally and downwardly from the gas-pipe 82 to the gas-valve 85, and from the gas-valve 85 an elbow 86 extends backwardly and downwardly, and a gas-pipe 87 extends from the elbow downwardly to a position back of the box 10 to the T- coupling 88, and the connec tions 89 lead from the ends of the T- coupling 88 through the back wall of the box 10 to the subburner 90.

The gas-valve 85 is constructed as shown in detail in Fig. 3, and consists of a cylindrical valve 91, rotatably mounted in the cas ing 92 and having a handle 93 for operation and flange 94 to prevent leakage. A setscrew 95, screw-seated in the casing, extends into the transverse slot 96 to limit the rotation of the valve. An opening 97, formed in the valve 92, registers with the openingin the pipe 84 when the valve is turned to its open position. The blow-off pipe 98 leads from the gas-pipe 82 outwardly to any safe place and has an automatic blow-off valve 99, controlled by gravity for regulating the discharge of gas through the pipe. The blowoff valve is constructed as shown in detail in Fig. 4, and consists of two hemispherical sections 100 and 101, flanged together at 102 and incorporated into the pipe, and having a diskshaped valve 103 mounted horizontally in the chamber, so that the valve may be raised by pressure from below to allow gas to pass upwardly through the casing and so that the valve will settle down by gravity and close the passage through the casing.

The drain-pipe 104 leads froni'the casing 73 to the sewer or any safe place. The lightingchandelier and heat-burners are attached to the gas-pipe 82.

The operation is as follows: The needle 51 is operated to allow gasolene'to run into the drip-cup, and fire is applied to this gasolene and heats the starting-burner. Then the needle-valve is again opened and the gas passes through the opening 62 and burns against the generator 12, thus heating the generator.

Then the needle-valve 23 is opened and gas is discharged into the mixing-chamber 78 and passes through the gas-pipe 82 to the light and heat burners. A part of the gas will pass through the subburner-pipe 84 andits connections to the subburner 90 and be lighted from the starting-burner. Then the startingburner may be extinguished. The subburners 90 are regulated by the gas-valve 85. If the needle-valve 27 is opened before the generator is hot, gasolene will be discharged upwardly into the mixing-chamber and will run downwardly into the casing 73 and run out through the drain-pipe 103. If the valve 23 allows more gas to pass into the mixing-chamber than can be used by the burners in the operation, an excess of pressure will be created in the gas-pipe, and this excess of pressure will pass through the blow-off valve 99.

I do not herein specifically claim the retort or generator 12, as I have made the same the subject-matter of a companion application filed November 3, 1902, Serial No. 129,946.

I claim- In a carbureter, a main generator supplied from an air-pressure gasolene-pipe, a main burner beneath said generator, a startingburner supplied from a separate gravity pressure-tank, a regulating-valve connected to I In testimony whereof I afi'ix my signature the main generator, a gas-pipe to receive gas in presence of two witnesses.

from the regulating-valve, the externallythreaded adjustable mixing-tube 80 screwed within said gas-pipe, and subburners fed Witnesses:

from the gas-pipe to permanently heat the M. G. IRION, generator, substantially as specified. ALFRED A. EIOKS.

JOHN T. WOOD. 

